An apparatus for detecting a puncture comprises a housing comprising a plurality of compartments. Each compartment comprises an opening for receiving a flow of air into the compartment. Each compartment also comprises a detection element mounted on an axle, the axle having a first end and a second end and being secured at said first end and said second end within the compartment. The detection element is rotatable about the axle and when a flow of air passes through the opening into the compartment, the detection element rotates around the axle in response to the flow of air.

A system includes sensors for monitoring pressure, flow, pump speed, temperature, and/or other signals at the output of a main hydraulic pump, and a processing system executes one or more methods for identification of hydraulic system events, from the signals, corresponding to state changes and performance of the system and/or its subcomponents. Event identification is performed with classification and/or other machine learning algorithms, with generation of novel training data sets. The sensor(s) can also be used to determine power consumption information about the system and/or its subcomponents. The system processes event-associated outputs for execution of actions for improving system performance, along with other downstream applications.

A system includes sensors for monitoring pressure, flow, pump speed, temperature, and/or other signals at the output of a main hydraulic pump, and a processing system executes one or more methods for identification of hydraulic system events, from the signals, corresponding to state changes and performance of the system and/or its subcomponents. Event identification is performed with classification and/or other machine learning algorithms, with generation of novel training data sets. The sensor(s) can also be used to determine power consumption information about the system and/or its subcomponents. The system processes event-associated outputs for execution of actions for improving system performance, along with other downstream applications.

The present technology is generally directed to assembling and testing ampoules, and associated systems, devices, and methods. Each ampoule can include a body portion configured to carry a marking material within an interior of the body portion, and a base portion configured to couple to the body portion to seal the interior of the body portion. The ampoules can be assembled and/or tested in an inverted orientation. In the inverted orientation, the ampoule can include a gap between the marking material and the base portion. For example, the ampoule can be positioned within a leak detection system and the ampoule's gap can be aligned with one or more leak detection components configured to analyze the gap for leak-related indicia.

The present technology is generally directed to assembling and testing ampoules, and associated systems, devices, and methods. Each ampoule can include a body portion configured to carry a marking material within an interior of the body portion, and a base portion configured to couple to the body portion to seal the interior of the body portion. The ampoules can be assembled and/or tested in an inverted orientation. In the inverted orientation, the ampoule can include a gap between the marking material and the base portion. For example, the ampoule can be positioned within a leak detection system and the ampoule's gap can be aligned with one or more leak detection components configured to analyze the gap for leak-related indicia.

A device for holding a flap of a non-return valve in a closed position, which is configured to carry out hydraulic testing of a device or apparatus, includes a body which takes the form of a caliper with two arms that are articulated relative to each other, at a first of the two opposite ends thereof, about a first axis, in that it includes a holder articulated about the first axis and in that the two arms each has, at the second end thereof, a pad pivoting about axes that are parallel to the first axis.

Methods and systems are provided for regulating evaporative emissions from a fuel system. In one example, a method may comprise spinning an engine unfueled responsive to a hydrocarbon concentration at a fresh air end of a fuel vapor canister increasing above a first threshold. The method may comprise spinning the engine to pull hydrocarbons away until a hydrocarbon concentration at a purge end of the fuel vapor canister, opposite the fresh air end, increases above a second threshold.

A leak detection device has a test chamber which, for evacuation, is connected to an evacuation pump device. Moreover, the test chamber is connected by a test gas line to a test gas pump device. The test gas pump device is connected, at its main inlet, to a test gas detector, such that a detection of test gas can take place using the counter-current principle. A valve device is arranged in the test gas line. This valve device has a test gas chamber for temporary storage of test gas removed from the test chamber.

A leak detection device has a test chamber which, for evacuation, is connected to an evacuation pump device. Moreover, the test chamber is connected by a test gas line to a test gas pump device. The test gas pump device is connected, at its main inlet, to a test gas detector, such that a detection of test gas can take place using the counter-current principle. A valve device is arranged in the test gas line. This valve device has a test gas chamber for temporary storage of test gas removed from the test chamber.

A test tool and related method for testing a blowout preventer (BOP). The test tool includes a first sub, a first pipe adapted to be connected to, and disconnected from, the first sub, the first pipe including an external spline, a second sub adapted to be connected to, and disconnected from, the first sub, the second sub including an internal spline adapted to engage the external spline of the first pipe, and a second pipe adapted to be connected to the second sub. The test tool includes an operational configuration in which the internal spline of the second sub engages the external spline of the first pipe so that a torque is transferable from the second sub to the first pipe via at least the engagement between the internal spline and the external spline. One or more high pressure low torque (HPLT) connections are incorporated into the test tool.